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Posted: Sun May 31, 2009 7:07 pm
by wilson
In the film Children Of Men the main character survives a bomb blast and the next day is talking to some woman who says 'Hear that ringing in your ears? It's the sound of ear cells (or something) dying. And once they're gone, you'll never hear those frequencies again.'
Scared the shit outta me!
However, I then realised that it might not be 100% true seeing as it's a bloody film afterall but then again they wouldn't randomly make that up would they?
Seriously considering getting those see-through proplugs on the Chemical website now.
Posted: Sat Jul 11, 2009 7:22 pm
by bass hertz
ummm... sorry to bring bad news to some people.
I have become somewhat of an obsessed-informed hearing person.
Being able to hear as close as possible to 20khz doesn't indicate anything really.
If you are looking for signs of hearing loss (age related or noise induced) then you need a Audiological Evaluation done by a professional in a sound booth.
Just had mine done yesterday, and I am NOT happy.
Noise induced hearing damage has a result on ONLY one particular freq range... 3000 hz to 5000 hz.
I know most people think hearing loss starts in the highest freqs and works it way down. Absolutely a major misconception. The longer you are exposed to sounds over 85db or higher (depending on the person and the lenght of time, even lower volumes at a constant level) the damage starts to move below 4000hz and above 4000hz.
my bassline test is done and 20db which is HL decibels... HL (hearing level) dbs are different from SPL levels (hard to explain). but never less, 20 db hl is the constant bassline.
Then I am introduced to frequencies from 125hz to 8000hz. I can hear all those freqs in the range EXCEPT... I need 10 db hl of amplification on the 4000 hz range to hear that freq. eeekkk... !
This is a mild amount of NOISE INDUCED HEARING LOSS.
the physicologic thing going on is that loud volumes hit the ear drum. then the hammer bones work harder and the music is sent into the cochlear. because to the "spiral seashell shape" of the cochlear it has a suseptability to get hurt easiest at the 4000hz range.
Its kinda like to much water pressure going through a spiral tubing.Loud music hits hard at the first flat arch in the cochlear. guess what. That's where your little nerve hairs resonate at and respond to 4000hz.
And no particulare music or frequencies cause hearing trouble. Only sound that is over 85 or 87 db. But hearing lower freqs are "easier" for the human ear. And very high are the next. It is the mid high that can be a problem with age because it gets the most "wear and tear".
Just watch your levels people. Hearing lost from noise damage CAN NOT
be recovered. If you produce, then eliminate all ambient noise from your room. If you use headphone monitors, then keep them only loud enough to reproduce the freqs; which quality phones do this with minimal power.
Posted: Sun Jul 12, 2009 11:48 am
by bass hertz
There is a similiar topic on this matter also happening in the secret ninja forum.
Posted: Sun Jul 12, 2009 7:10 pm
by mrk_instinct
I got a sick pair from oto hearing, custom molded -25 db reduction for the big badass clubs, and you can dj with them theres a slight spike at like 7k - 20k that dips for added attenuation on higher frequencies making. No problems whatsoever. SO FLY I WOULD DIE Without them.
Posted: Mon Jul 13, 2009 2:25 am
by bass hertz
Mrk_Instinct wrote:I got a sick pair from oto hearing, custom molded -25 db reduction for the big badass clubs, and you can dj with them theres a slight spike at like 7k - 20k that dips for added attenuation on higher frequencies making. No problems whatsoever. SO FLY I WOULD DIE Without them.
smart man.
speaking of big badass clubs... what ever happened to Dillinja's huge Valve system? Has dubstep been played on that?
Posted: Mon Jul 13, 2009 5:40 am
by gorbek
I've done a hearing test in a sound booth, im only 23 and I already have hearing damage in ALL frequency ranges, and in both ears, more in my right.
Keep in mind if you guys drive cars with car stereos, the loudness in a car is huge because of its a small enclosed space, so the sound pressure is higher. I love my car stereo because I get killer bass, but the space is just too small.
*fingers crossed* hearing aid technology needs to get better!
Posted: Mon Jul 13, 2009 7:11 am
by mikro.
bass hertz wrote:what ever happened to Dillinja's huge Valve system? Has dubstep been played on that?
Not that I would know, but judging from the direction of dillinjas later ideas (read: cookie cutter jump up high range clownshoes) I doubt any interesting or challenging music will be heard from the valve.
But who knows, give dubstep a little time to gain more popularity and maybe he will start pushing it to the kids in the same manner.
OnT: Is it possible to gain ear damage from frequencies that are inaudible to the human ear, if it's loud enough?
Just for example: When I hear the rusty breaks of a car screech close by it immediately hurts my ears, but at the same time i can almost physically feel that there are a lot of frequencies in the noise that I'm not picking up. Does this mean that these frequencies can cause damage without me even knowing, given the sound is loud enough?
And are you saying that sound that hurts your ears (impulse or constant) not necessarily has to damage your hearing, as long as it's for a shorter span of time and at levels under 85 db? I've always been thinking about the bodys own signals as a good guideline, and the high end at some places just feels like it is physically grinding down your hearing.
That's a lot right there, hope it's not too obscure. What you wrote got me really interested since i've been thinking about this for a while.
Posted: Mon Jul 13, 2009 7:36 am
by alphacat
Saphyre wrote:wait so what does music sound like at a club when you're wearing earplugs, and isnt it uncomfortable?
Actually, in some cases what you're hearing WITH earplugs is closer to the "board mix" than what you hear without plugs: the mixing board doesn't pick up all of the resonant standing waves, formants, and other mechanical acoustics happening in the room after the sound is pumped out of a big-ass PA system. There's essentially an EQ curve that earplugs color your listening experience with, but know that they're mostly cutting out a lot of artificially overdriven frequencies too.
As someone whose ears rang for 2 weeks straight after seeing Motorhead in the late 80's (from the front row) and then going on to work in a club for years after that - hearing loss is very, very real and very, very sad.
Don't think you don't care because you're tragically cool either. The only thing more lame than an idjit who should've wised up earlier is a
deaf idjit who should've wised up earlier.
Posted: Mon Jul 13, 2009 12:17 pm
by bass hertz
mikro. wrote:
Is it possible to gain ear damage from frequencies that are inaudible to the human ear... if it's loud enough?
NO. If you cant hear them it means you don't have physical response TO those frequencies.... BUT, frequencies that you can barely hear might. remember.... the key is to keep the volume under 87 db
and even signifigantly lower than that if for longer periods of time. Use that google for some reputable source. Ask the pros
Posted: Mon Jul 13, 2009 1:22 pm
by macc
Alphacat wrote:
Don't think you don't care because you're tragically cool either. The only thing more lame than an idjit who should've wised up earlier is a deaf idjit who should've wised up earlier.
This should be on a poster on every branch of public transport.
Posted: Mon Jul 13, 2009 1:36 pm
by serox
Stop going to clubs that have shit sound systems!
Posted: Mon Jul 13, 2009 7:19 pm
by thinking
there are lots of diff disposable plugs on Chemical:
CLICK
try some cheap ones, and if you think it's worth your while, spend more!
Posted: Mon Jul 13, 2009 11:52 pm
by xthewiddler
Karmacazee wrote:Has anyone noticed that every big gig you go to has the high end up so loud that the crashes/rides/hats just sound like distorted white noise?
Like a constant barrage of evil for you ears, and not the good type.
What, do they happen to put the sound engineering booth in the only place you can't hear high-end harshness in every single club and venue going or what?
Turn the flippin' treble down fools!
Or do I still have the hearing of a twelve year old?
THIS
Posted: Tue Jul 14, 2009 12:14 am
by setspeed
xTheWiddler wrote:Karmacazee wrote:Has anyone noticed that every big gig you go to has the high end up so loud that the crashes/rides/hats just sound like distorted white noise?
Like a constant barrage of evil for you ears, and not the good type.
What, do they happen to put the sound engineering booth in the only place you can't hear high-end harshness in every single club and venue going or what?
Turn the flippin' treble down fools!
Or do I still have the hearing of a twelve year old?
THIS
it's probably a perfectly engineered system that is then ruined by a DJ old enough to know better who just cranks everything into the red...